@CNN: For the first time, scientists have been able to trace the origins of a ghostly subatomic particle that traveled 3.7 billion light-years to Earth https://t.co/KdzEJLcnth https://t.co/ef9sc5YlUd

@CNN: For the first time, scientists have been able to trace the origins of a ghostly subatomic particle that traveled 3.7 billion light-years to Earth https://t.co/KdzEJLcnth https://t.co/ef9sc5YlUd